USB 2 and CD-RW

Greetings! My Yamaha CDRW USB 2.0 worked ok under Suse 8.0 but doesn't work under 8.1 When I use USB Viewer it's showing up as the CRW3200UX connected to USB Version 2.00 at 480Mb/s. How do I get this to mount? K3b says it's /dev/sg0 while Yast reports it as /dev/sr0. Thing is neither of them work. I get "Could not mount device. The reported error was: mount: No medium found" even though I have a data CD in it. The mount point is /media/sr0 When I plug it in the system beeps once. Any help would be greatly appreciated. Thanks! Eric